Home / 151,167.57-208,640.16-100,090.23

Finding the Fourth Proportional to 151,167.57, 208,640.16 and 100,090.23

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Solution

The fourth proportional to 151,167.57, 208,640.16 and 100,090.23 is: 138,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,167.57 : 208,640.16 = 100,090.23 : x
  2. Step 2: Convert to fraction form
    151,167.57/208,640.16 = 100,090.23/x
  3. Step 3: Cross multiply
    151,167.57x = 208,640.16 × 100,090.23
  4. Step 4: Simplify right side
    151,167.57x = 20,882,841,601.64
  5. Step 5: Solve for x
    x = 20,882,841,601.64/151,167.57
  6. Step 6: Final answer
    x = 138,143.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.